No. 1.] WHIT EAVES — DEVONIAN FISHES. 2T 



segment, and from thence they begin to point towards the posterior 

 termination of the spine. 



Sculpture of the hehuet, buckler, plastron and pectoral spines 

 very closely resembling that of the plates of Bothriolepis ornata 

 but much finer and more delicate. 



ON SOME REMARKABLE FOSSIL FISHES FROM 

 THE DEVONIAN ROCKS OF SCAUxMENAC BAY, 

 P. Q., WITH DESCRIPTIONS OF A NEW GENUS 

 AND THREE NEW SPECIES. 



By J. F. Whiteaves. 



Immediately after the preceding paper was written, Mr. A. H. 

 Foord, of the Geological Survey of Canada, went down to the 

 Baie des Chaleurs and spent two months and a half of the sum- 

 mer of 1880 in a careful and systematic examination of the fish- 

 beariog beds of the Devonian rocks of the north bank of the 

 mouth of the Restigouche river. The exact locality at which 

 the Ptericlithys and other fossil fishes were found by Messrs. Ells 

 and Weston is not the Baie des Chaleurs proper but Scaumenac 

 Bay, Bonaventure County, Province of Quebec. On the shores 

 of this bay a series of shales, sandstones and conglomerates, 

 now known to be of Devonian age, are overlaid, apparently un- 

 conformably, by the red sandstones and conglomerates of the 

 '' Bonaventure Formation." The geological structure of both 

 banks of the Restigouche river was examined by Dr. Abraham 

 Gesner in 1842, who also was the first to notice the existence of 

 fossil fishes and plants in the shales and sandstones of Scau- 

 menac Bay. Referring to the latter. Dr. Gesner says, ^ " In 

 these sandstones and shales I found the remains of fish and 

 a small species of tortoise, with fossil foot prints" : the sculp- 

 tured plates of Pterichtlii/s being evidently regarded by the 

 Doctor as portions of the carapace or plastron of a small tortoise. 



From these deposits Mr. Foord succeeded in obtaining an ex- 

 tensive and interesting collection of fossil fishes. Of the entire 

 number of specimens collected, fully four-fifths are referable to 



* Report on the Geological Survey of New Brunswick, 1843, p. 64. 



